248 lines
6.2 KiB
Batchfile
248 lines
6.2 KiB
Batchfile
@rem = '--*-Perl-*--
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@echo off
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if "%OS%" == "Windows_NT" goto WinNT
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IF EXIST "%~dp0perl.exe" (
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"%~dp0perl.exe" -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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) ELSE IF EXIST "%~dp0..\..\bin\perl.exe" (
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"%~dp0..\..\bin\perl.exe" -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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) ELSE (
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perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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)
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goto endofperl
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:WinNT
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IF EXIST "%~dp0perl.exe" (
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"%~dp0perl.exe" -x -S %0 %*
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) ELSE IF EXIST "%~dp0..\..\bin\perl.exe" (
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"%~dp0..\..\bin\perl.exe" -x -S %0 %*
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) ELSE (
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perl -x -S %0 %*
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)
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if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
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if %errorlevel% == 9009 echo You do not have Perl in your PATH.
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if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
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goto endofperl
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@rem ';
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#!/usr/bin/perl
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#line 29
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# Streaming zip
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use strict;
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use warnings;
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use IO::Compress::Zip qw(zip
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ZIP_CM_STORE
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ZIP_CM_DEFLATE
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ZIP_CM_BZIP2
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ZIP_CM_LZMA );
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use Getopt::Long;
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my $VERSION = '1.001';
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my $compression_method = ZIP_CM_DEFLATE;
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my $stream = 0;
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my $zipfile = '-';
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my $memberName = '-' ;
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my $zip64 = 0 ;
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GetOptions("zip64" => \$zip64,
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"method=s" => \&lookupMethod,
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"stream" => \$stream,
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"zipfile=s" => \$zipfile,
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"member-name=s" => \$memberName,
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'version' => sub { print "$VERSION\n"; exit 0 },
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'help' => \&Usage,
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)
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or Usage();
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Usage()
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if @ARGV;
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zip '-' => $zipfile,
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Name => $memberName,
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Zip64 => $zip64,
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Method => $compression_method,
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Stream => $stream
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or die "Error creating zip file '$zipfile': $\n" ;
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exit 0;
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sub lookupMethod
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{
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my $name = shift;
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my $value = shift ;
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my %valid = ( store => ZIP_CM_STORE,
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deflate => ZIP_CM_DEFLATE,
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bzip2 => ZIP_CM_BZIP2,
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lzma => ZIP_CM_LZMA,
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);
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my $method = $valid{ lc $value };
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Usage("Unknown method '$value'")
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if ! defined $method;
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# If LZMA was rquested, check that it is available
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if ($method == ZIP_CM_LZMA)
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{
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eval ' use IO::Compress::Adapter::Lzma';
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die "Method 'LZMA' needs IO::Compress::Adapter::Lzma\n"
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if ! defined $IO::Compress::Lzma::VERSION;
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}
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$compression_method = $method;
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}
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sub Usage
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{
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print <<EOM;
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Usage:
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producer | streamzip [OPTIONS] | consumer
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producer | streamzip [OPTIONS] -zipfile=output.zip
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Stream data from stdin, compress into a Zip container, and stream to stdout.
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OPTIONS
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-zipfile=F Write zip container to the filename 'F'
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Outputs to stdout if zipfile not specified.
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-member-name=M Set member name to 'M' [Default '-']
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-zip64 Create a Zip64-compliant zip file [Default: No]
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Enable Zip64 if input is greater than 4Gig.
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-stream Force a streamed zip file when zipfile is also enabled.
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Only applies when 'zipfile' option is used. [Default: No]
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Stream is always enabled when writing to stdout.
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-method=M Compress using method 'M'.
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Valid methods are
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store Store without compression
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deflate Use Deflate compression [Deflault]
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bzip2 Use Bzip2 compression
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lzma Use LZMA compression [needs IO::Compress::Lzma]
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Lzma needs IO::Compress::Lzma to be installed.
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-version Display version number [$VERSION]
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Copyright (c) 2019-2020 Paul Marquess. All rights reserved.
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This program is free software; you can redistribute it and/or
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modify it under the same terms as Perl itself.
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EOM
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exit;
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}
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__END__
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=head1 NAME
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streamzip - create a zip file from stdin
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=head1 SYNOPSIS
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producer | streamzip [opts] | consumer
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producer | streamzip [opts] -zipfile=output.zip
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=head1 DESCRIPTION
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This program will read data from C<stdin>, compress it into a zip container
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and, by default, write a I<streamed> zip file to C<stdout>. No temporary
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files are created.
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The zip container written to C<stdout> is, by necessity, written in
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streaming format. Most programs that read Zip files can cope with a
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streamed zip file, but if interoperability is important, and your workflow
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allows you to write the zip file directly to disk you can create a
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non-streamed zip file using the C<zipfile> option.
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=head2 OPTIONS
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=over 5
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=item -zip64
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Create a Zip64-compliant zip container. Use this option if the input is
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greater than 4Gig.
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Default is disabled.
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=item -zipfile=F
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Write zip container to the filename C<F>.
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Use the C<Stream> option to force the creation of a streamed zip file.
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=item -member-name=M
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This option is used to name the "file" in the zip container.
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Default is '-'.
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=item -stream
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Ignored when writing to C<stdout>.
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If the C<zipfile> option is specified, including this option will trigger
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the creation of a streamed zip file.
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Default: Always enabled when writing to C<stdout>, otherwise disabled.
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=item -method=M
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Compress using method C<M>.
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Valid method names are
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* store Store without compression
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* deflate Use Deflate compression [Deflault]
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* bzip2 Use Bzip2 compression
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* lzma Use LZMA compression
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Note that Lzma compress needs C<IO::Compress::Lzma> to be installed.
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Default is C<deflate>.
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=item -version
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Display version number [$VERSION]
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=item -help
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Display help
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=back
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=head2 When to use a Streamed Zip File
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A Streamed Zip File is useful in situations where you cannot seek
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backwards/forwards in the file.
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A good examples is when you are serving dynamic content from a Web Server
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straight into a socket without needing to create a temporary zip file in
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the filesystsm.
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Similarly if your workfow uses a Linux pipelined commands.
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=head1 SUPPORT
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General feedback/questions/bug reports should be sent to
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L<https://github.com/pmqs/IO-Compress/issues> (preferred) or
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L<https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress>.
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=head1 AUTHOR
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Paul Marquess F<pmqs@cpan.org>.
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=head1 COPYRIGHT
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Copyright (c) 2019-2020 Paul Marquess. All rights reserved.
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This program is free software; you can redistribute it and/or modify it
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under the same terms as Perl itself.
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__END__
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:endofperl
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